Isqtb

Fixing a bug under pressure has some chance of introduce another defect. Projects sometimes will defer fixing it.

A small number of well-placed, targeted tests may be more rigorous than a large number of badly focused tests.

It is worth learning from the problems encountered in previous projects.

Understanding the root causes- me: helps to avoid same problems and creates a thinking mechanism closer to system: how it works or how it is used.

As testers, we are also interested in looking at defects found in other projects, so that we can improve our process.

Organizations should consider testing as part of a larger quality assurance strategy.